revving problem
 

hi all,

ive got a 1.6sr engine golf X reg. i noticed a pipe from the inlet manifold to the brake servo had split so i replaced that and that sorted my idleing problem. but i seem to have a problem still with high revs. at about 5000 revs the power will just drop away and build back, but its not a red line stop its almost a loss of compression as if theres something else wrong. either that or thats the red line. any one else had this problem or have any clue what is going on? thanks